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Finding the Fourth Proportional to 127,886.88, 191,831.76 and 34,393.44

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Solution

The fourth proportional to 127,886.88, 191,831.76 and 34,393.44 is: 51,590.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,886.88 : 191,831.76 = 34,393.44 : x
  2. Step 2: Convert to fraction form
    127,886.88/191,831.76 = 34,393.44/x
  3. Step 3: Cross multiply
    127,886.88x = 191,831.76 × 34,393.44
  4. Step 4: Simplify right side
    127,886.88x = 6,597,754,127.65
  5. Step 5: Solve for x
    x = 6,597,754,127.65/127,886.88
  6. Step 6: Final answer
    x = 51,590.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.